Locomotive



Patented. Oct. 27, 1925.

l 1,559,131 PATENT OFFICE.

WILLIAM W. SLOANE, F CHICAGO, ILLINOI SASSKIGNOR TO GOODMAN MANUFACTUR- ING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINO'IS.

- LOCOMOTIVE.

Application f11ed` December 24, 1924. Serial No.` 757,876.

To all whom t may concern:

Be it known that I, WILLIAM IV. SLOANE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and. useful Improvement in Locomotives, of which the following is a specification.

This invention relates to improvements in locomotives, and more particularly to locomotives of the well-known three-axle type. Y

The principal object of the present invention is to provide an improved constructlon in such a locomotiveaffordingrelative liexibility of the supporting wheels and axles so as to readily follow rough or uneven track. Y f Locomotives vof the three-axle type have heretofore been provided eithery with' a 2G transverse rod and bell crank lever equalizer upon one of the end axles, or with longitudinal rocking bar equalizers, one .on either side of the locomotive, and cooperating with one of theiend axles andthe center axle. It has been found that either of these methods of equalization when applied alone to a locomotive of the three-axle type is only partially effective and successful, but that by combining the two constructions upon 3U a single locomotive perfect equalization is obtained both transversely and longitudinally, thus enabling a locomotive of this type to operate successfully upon such trackage as is usually found in mines.

In the present invention I provide such a combination, comprising an equalizing device upon one of the end axles in which the opposite ends 0f the axle have a pair of bell crank levers interposed between them and the frame, the levers being operatively connected with each other, so as to allow the axle to swing in a vertical plane independently of the resiliency of the springs,

and another device upon the other end andk the center axle, comprising two rocking bar members, one on either side of the locomotlve.

Figure 2 is a top verse equalizer; and

Figure 3 1s an enlarged transverse cross plan view of the trans-i section taken on line 3-3 of Figure 2.

Asherein shown it comprises a' longitudinal bar member 20 adapted torock on a fulcrum or bearing point 2l on the lower surface of the stud or projecting support member 22, carried upon the side plate l, whereby the weight of the side plate is supported. It will be observed that the ends 23 and 24 of the bar 20 are rounded and adapted to bear upon coacting recesses formed in the stirrups 25 and 26. These stirrups each carry a tension spring 27 and 28 respectively, interposed between said stirrups and axle boxes 29 and 30 mounted at the ends of axles 5 and 6 respectively and adapted tol have limited vertical movement between guide plates of the usual construction. It will be noted that if for instance, the supporting wheel 2 upon the axle 5 passes over a low point on the trackV the tension upon the spring 27 will be lessened thereby allowing the spring 28 to exert a greater tension upon the stirrup 26 and bearing end 24 of the bar member 2O thus forcing this end of the bar upward around the fulcrum point 2l and causing the opposite end 23 of the bar to be correspondingly lowered.

An identical construction is providedY uponv the opposite side of the locomotive.

Referring now more particularly to the details of the transverse or cross-bar equalizer mounted upon the axle 7, each end of said axle is journaled in a journal box 40 of any approved construction, said journal box being arranged to move vertically between pedestals or guide plates, 41, 41, of the usual type. The weight of the locomotive is borne upon the journal boxes 40, 40, through the medium of a pair of rocking members 42, 42, mounted on thelocomotive frame above their respective axle boxes. Each of said rocking members comprises a bell crank lever pivotally mounted to swing in a vertical plane transversely of the locomotive.

In the form shown, said rocking member has two bearing pins 43, 43, on a common longitudinal axis and pivotally mounted in brackets 44, 44, carried on thev side plate 1 of the locomotive frame. Said pins form the fixed axis of movement of the rocking member and are connected together by a longitudinally extending member 45. One lever arm of the rocking member comprises an arm 46, connected to the longitudinal member and arranged to one side oit the axis of pivot pins 43, 43. Said arm 45 bears upon a stirrup 47, which carries a spring 48, interposed between said stirrup and the axle box 40. The lower end 49 ot the member 45 is preferably arcuate in cross-section, as shown in Figure 3, to it a corresponding depression 50 formed in the upper surface of said stirrup. The parts are retained in place by a pair of pins 5l, 5l extending through opposite ends of the stirrup, and into recesses in the arm 46 as shown.

The second lever arm ot the rocking member 42 comprises an inwardly extending member 52, arranged above the axis of said rocking member and pivotally connected with a transverse equalizing bar 53, extending across the locomotive and attached to a similar rocking arm above the opposite end of the axle 3.

By means ofthe two equalizing devices above described it will be seen that the wheels on a locomotive of the necessary length for the three-axle type will readily 'follow uneven track, the entire body o1' frame of the locomotive being equalized on all three axles both as to transverse and longitudinal movement.

Although I have shown and described one embodiment of my invention, it will be understood that the arrangement and construction ot the various parts may be altered without departing from the spirit and scope thereof. Furthermore, I do not wish to be construed as limiting myself to the particular construction illustrated, excepting as it may be limited speciiically in the appended claim.

I claim as myinvention:

In a locomotive, a Jframe, three laterally spaced axles having supporting wheels, a transverse equalizing device comprising a pair of rocking members, each pivotally mounted on opposite sides of the 'frame and ai'lq'ording vertically movable support for one end of'one ot said axles, horizontally movable means connecting said rocking members together, and a longitudinal equalizing Vdevice comprising a pair of bar members adapted for longitudinal movement about a Jiulcrum support on either side of said trame, each bar member affording a ver tically Vmovable support for the respective ends or" the other two axles.

Sionedat Chicavo in the count ot Cook and State of Illinois, this 20th day of December, A. D. 1924.

WILLIAM IV. SLOANE. 

